Of the following transtions in hydrogen atom the one which gives an abosrption line of maximum wavelenths

Of the following transitions in hydrogen atom, the one which gives an absorption line of lowest frequency is :

Of the following transitions in a hydrogen atom, the one which gives an absorption line of highest frequency is

of the following transitions in the hydrogen atom, the one which gives an emission line of the highest frequency?

Of the following transitions in the hydrogen atom, the one which gives on emission line of heighest frequency is

Which of the following spectral series in hydrogen atom give spectral line of 4860 Å

Which of the following transition in He^(+) ion will give rise to a spectral line which has the same wavelength as some spectral line in the hydrogen atom ?

Which of the following transition in He^(+) ion will give rise to a spectral line which has the same wavelength as some spectral line in the hydrogen atom ?